src/ucx/printf.c

Thu, 07 Sep 2023 10:51:13 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 07 Sep 2023 10:51:13 +0200
changeset 510
379fe1856800
parent 490
d218607f5a7e
permissions
-rw-r--r--

fix send_string_escaped

415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
1 /*
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
3 *
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
5 *
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
6 * Redistribution and use in source and binary forms, with or without
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
7 * modification, are permitted provided that the following conditions are met:
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
8 *
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
9 * 1. Redistributions of source code must retain the above copyright
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
10 * notice, this list of conditions and the following disclaimer.
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
11 *
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
12 * 2. Redistributions in binary form must reproduce the above copyright
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
13 * notice, this list of conditions and the following disclaimer in the
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
14 * documentation and/or other materials provided with the distribution.
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
15 *
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
26 * POSSIBILITY OF SUCH DAMAGE.
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
27 */
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
28
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
29 #include "cx/printf.h"
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
30
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
31 #include <stdio.h>
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
32 #include <string.h>
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
33
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
34 #ifndef CX_PRINTF_SBO_SIZE
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
35 #define CX_PRINTF_SBO_SIZE 512
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
36 #endif
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
37
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
38 int cx_fprintf(
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
39 void *stream,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
40 cx_write_func wfc,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
41 char const *fmt,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
42 ...
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
43 ) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
44 int ret;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
45 va_list ap;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
46 va_start(ap, fmt);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
47 ret = cx_vfprintf(stream, wfc, fmt, ap);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
48 va_end(ap);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
49 return ret;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
50 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
51
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
52 int cx_vfprintf(
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
53 void *stream,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
54 cx_write_func wfc,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
55 char const *fmt,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
56 va_list ap
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
57 ) {
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
58 char buf[CX_PRINTF_SBO_SIZE];
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
59 va_list ap2;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
60 va_copy(ap2, ap);
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
61 int ret = vsnprintf(buf, CX_PRINTF_SBO_SIZE, fmt, ap);
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
62 if (ret < 0) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
63 return ret;
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
64 } else if (ret < CX_PRINTF_SBO_SIZE) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
65 return (int) wfc(buf, 1, ret, stream);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
66 } else {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
67 int len = ret + 1;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
68 char *newbuf = malloc(len);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
69 if (!newbuf) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
70 return -1;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
71 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
72
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
73 ret = vsnprintf(newbuf, len, fmt, ap2);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
74 if (ret > 0) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
75 ret = (int) wfc(newbuf, 1, ret, stream);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
76 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
77 free(newbuf);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
78 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
79 return ret;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
80 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
81
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
82 cxmutstr cx_asprintf_a(
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
83 CxAllocator const *allocator,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
84 char const *fmt,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
85 ...
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
86 ) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
87 va_list ap;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
88 cxmutstr ret;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
89 va_start(ap, fmt);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
90 ret = cx_vasprintf_a(allocator, fmt, ap);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
91 va_end(ap);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
92 return ret;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
93 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
94
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
95 cxmutstr cx_vasprintf_a(
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
96 CxAllocator const *a,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
97 char const *fmt,
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
98 va_list ap
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
99 ) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
100 cxmutstr s;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
101 s.ptr = NULL;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
102 s.length = 0;
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
103 char buf[CX_PRINTF_SBO_SIZE];
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
104 va_list ap2;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
105 va_copy(ap2, ap);
490
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
106 int ret = vsnprintf(buf, CX_PRINTF_SBO_SIZE, fmt, ap);
d218607f5a7e update ucx
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 415
diff changeset
107 if (ret > 0 && ret < CX_PRINTF_SBO_SIZE) {
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
108 s.ptr = cxMalloc(a, ret + 1);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
109 if (s.ptr) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
110 s.length = (size_t) ret;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
111 memcpy(s.ptr, buf, ret);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
112 s.ptr[s.length] = '\0';
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
113 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
114 } else {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
115 int len = ret + 1;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
116 s.ptr = cxMalloc(a, len);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
117 if (s.ptr) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
118 ret = vsnprintf(s.ptr, len, fmt, ap2);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
119 if (ret < 0) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
120 free(s.ptr);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
121 s.ptr = NULL;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
122 } else {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
123 s.length = (size_t) ret;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
124 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
125 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
126 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
127 return s;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
128 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
129

mercurial